Time and again (http://www.usingenglish.com/reference/idioms/time+and+again.html)
If something happens time and again, it happens repeatedly. ('Time and time again' is also used.)
Time and tide wait for no man (http://www.usingenglish.com/reference/idioms/time+and+tide+wait+for+no+man.html)
This is used as a way of suggestion that people should act without delay.
Time does sail (http://www.usingenglish.com/reference/idioms/time+does+sail.html)
This idioms means that time passes by unnoticed.
Time flies (http://www.usingenglish.com/reference/idioms/time+flies.html)
This idiom means that time moves quickly and often unnoticed.
Time is on my side (http://www.usingenglish.com/reference/idioms/time+is+on+my+side.html)
If time is on your side, you have the luxury of not having to worry about how long something will take.
Time of your life (http://www.usingenglish.com/reference/idioms/time+of+your+life.html)
If you're having the time of your life, you are enjoying yourself very much indeed.
Time-honoured practice (http://www.usingenglish.com/reference/idioms/time-honoured+practice.html)
A time-honoured practice is a traditional way of doing something that has become almost universally accepted as the most appropriate or suitable way.